1. Elevated serum progesterone level on the day of human chorionic gonadotropin administration does not adversely affect implantation rates after intracytoplasmic sperm injection and embryo transfer 
Bulent Urman, M.D., Cengiz Alatas, M.D., Senai Aksoy, M.D., Ramazan Mercan, M.D., Aycan Isiklar, MSc, Basak Balaban, BSc. 
Fertility and Sterility 
Volume 72, Issue 6, Pages (December 1999)
DOI: /S (99)

2. FIGURE 1
Receiver operating characteristic curve analysis of different P levels on the day of hCG administration and the occurrence of clinical pregnancy after ICSI and ET (∗0.9 ng/mL yields a sensitivity of 71.6% and a specificity of 35.9%). The hypothetical line shows 50% sensitivity and 50% specificity.
Urman. Elevated serum progesterone. Fertil Steril 1999.
Fertility and Sterility  , DOI: ( /S (99) )